The Front Loader actually doesn’t do much towards adding extra shields. Bonus health passives on mod and artifact is more beneficial. Plus getting 5/3 TRL. Add in Phalanx Doctrine and you can get shields over 120k easily.
Can’t remember exactly, but there’s something weird about the math on the Front Loader. It takes its 60% at the end of the calculation which winds up being 60% from 1hp, so essentially nothing. Or something like that.